docs: def post_event_ticket_class(self, id, ticket_class_id, **data):
          """
          POST /events/:id/ticket_classes/:ticket_class_id/
          Updates an existing ticket class, returning the updated result as a :format:`ticket_class` under the key ``ticket_class``.
          """
          
          return self.post("/events/{0}/ticket_classes/{0}/".format(id,ticket_class_id), data=data)